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Air Brakes wont grab when i apply them on my trailer what should i do?
Wiki User
∙ 14y ago
Get the trailer in for repair, immediately. Not only will the DOT crucify you if you catch you running around like that, but there's also the safety concern. One of these trucks loaded still requires the length of two football fields or more to come to a complete stop at highway speeds - and that's with a properly operating set of brakes.
If it's a company truck, get on the Qualcomm, get on your cell phone - do whatever you need to do to contact your dispatcher right away. If they blow you off, then make sure your log books are in order, stop at the next scale house, and request they Level 3 your vehicle - the company will be forced to take action at that point.
Wiki User
∙ 14y ago
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Why does my 1995 Oldsmobile achieva brakes grab when you apply the brakes and the car shimmies?
it broke
What is the purpose of the Anti Braking System?
Prevents brakes from locking by pulsating the pressure when you apply firmly so they don't grab.
Why do your brakes grab?
ddd
What can make the brakes grab in reverse?
warped brake discs can cause your brakes to grab in reverse. Hope this helps.
What is the meaning of centric brakes?
Centric brakes are brakes which grab the tire in the middle for slowing the vehicle down. Most brakes grab at the side which can lead to swerve on very rare occasions.
Why wont my brakes grab on my trailer when I apply them they are air brakes?
Most likely answer is that it has something to do with your brake chamber. Bad brake chamber, bad seal.. something to that effect. There may also possibly be blockage in the air line. When trailers are parked in the yard, at customers, etc., there's usually nothing done to cover the glad hands, and stuff can get into the air lines that way.ANSWERThe most logical answer is the trailer brakes are out of adjustment. A VERY common problem with HD air brakes. DOT will fine you and put you out of service if they catch your running with brakes out of adjustment. Call a road service and get them adjusted properly >before< you hit the road again. A driver is totally and 100% responsible for assuring brakes are properly adjusted and working correctly. If your are sure they are adjusted right make sure your air lines are connected right, red on red, blue on blue, make sure you push in both the red and yellow brake valves on the dash. (charging the trailer brake air supply) If you will hook your trailer, roll your gear up, and then tug against the trailer with both dash valves, or the one big yellow valve, pulled >out< (trailer brakes not charged) and the trailer rolls forward with the tractor your trailer brakes are Definitely out of adjustment. When trailer brakes are properly adjusted a trailer will not budge when the spring brakes are set!!! Brake shoe Adjustment does indeed affect the parking spring brakes ability to lock all wheel's when a trailer has no air charge. Dude! I can't believe you actually passed a CDL air brake test! No offense intended here but you seriously do need some refresher training!! Truckers are legally responsible to make sure their equipment operates properly and is safe on public roads at all times. You have GOT to learn air brake basic man!!
What causes brakes to grab hard when they are wet?
it is friction and when the water goes on the brakes and tires they bond together
Why do rear brakes brake first?
All four brakes should engage at the same time. You probably need to bleed your front brakes. If road conditions are wet or you haven't driven the car in a while, drum brakes sometimes "grab". Many cars have rear drum brakes and front disc, this could be what you're expieriencing.
Why do my brakes grab when going downhill?
Your brake might grab when going downhill because the pads are wearing out. The lines may also need bled properly.
Brakes grab what to ask for to repair?
Make sure there are no fluid leaks getting on the brake linings' Make sure all brakes are working and are adjusted properly Make sure brakes are wearing equally
Why do the brakes grab when in reverse?
POSSIBLE SHOES ON BACKWARDS? HAVE YOU HAD ANY REPAIR WORK DONE RECNTLY?
Why does your car feel as though the brakes are grabbing when you slow down?
Is your car equipped with an ABS system? That keeps the vehicle from locking the brakes to prevent skidding. The brakes automatically "GRAB" on and off to slow without skidding
